public class Head{
   public static void main(String[] args){
      int counter = 0;
      Thread current = Thread.currentThread();
      ThreadOne one = null;
      RunnableTwo two = null;
      boolean alive = true;
      while(alive){
	 try { current.sleep(1000); } catch(InterruptedException ie) {}
	 if (counter == 0){
	    System.out.println("Creating and starting thread 1\n");
	    one = new ThreadOne();
	 }else if (counter == 5){
	    System.out.println("\nCreating and starting thread 2\n");
	    two = new RunnableTwo();
	 }else if (counter == 10){
	    two.pause();
	    System.out.println("\nPausing thread 2\n");
	 }else if (counter == 15){
	    System.out.println("\nRestarting thread 2\n");
	    two.restart();
	 }else if (counter == 20){
	    one.kill();
	    System.out.println("\nKilling thread 1\n");
	 }else if (counter == 25){
	    two.kill();
	    System.out.println("\nKilling thread 2");
	    alive = false;
	 }
	 counter++;
      }
   }
}